The above output indicates the drive is either 512, or 512e, both of which can be encrypted.

Command 2:
This command will provide more details as to disk sector size as well as cluster size and free cluster space.

fsutil fsinfo ntfsinfo c: (or disk letter you want to check.)

Sample output from the above command:

NTFS Volume Serial Number : 0x0c2283282283163c

Version : 3.1

Number Sectors : 0x000000002542cec0

Total Clusters : 0x0000000004a859d8

Free Clusters : 0x000000000424ddac

Total Reserved : 0x0000000000000b50

Bytes Per Sector : 512

Bytes Per Cluster : 4096

Bytes Per FileRecord Segment : 1024

Clusters Per FileRecord Segment : 0

Mft Valid Data Length : 0x00000000053ec000

Mft Start Lcn : 0x00000000000c0000

Mft2 Start Lcn : 0x0000000000000002

Mft Zone Start : 0x00000000000c53e0

Mft Zone End : 0x00000000000cc820<:computercode>

If either the "BlockSize" (1st command) or the "Bytes Per Sector" (2nd command) return a value of 4096, the drive has a 4K Native sector size and will not be supported by Symantec Drive Encryption (previously PGP Whole Disk Encryption). In both of these examples, the operating system interprets this as a sector size of 512, which can be encrypted.

Macintosh Platforms:

1. Open Terminal (Press the Command Key + Spacebar to open Spotlight, and type "Terminal", and press enter.

2. Run the following command:

diskutil info / | grep "Block Size"

If "Device Block Size: 512 Bytes" is returned, this indicates the drive is using 512. A value of 4096 Bytes would indicate 4K Native is being used, which cannot be encrypted.

For more information on Symantec Drive Encryption and 4k Native Drives, please see article TECH200098.